And there is also an oft-missed social justice aspect to all this. Professors and teachers are disproportionately white (and by definition, college-educated): https://nces.ed.gov/fastfacts/display.asp?id=61. We sell education as a way to overcome the legacy of systematic oppression of certain minority groups, but we are actually creating quite a large wealth transfer from disadvantaged minorities to college-educated white people. And members of these minority groups aren't seeing the pay-off from paying their tithes to the educational establishment. As the author notes in the article:
> A 2014 study from the Center for Economic and Policy Research revealed that an incredible 55.9 percent of black recent college graduates were “underemployed” and working in a position that didn’t require a four-year college degree.